US10948217B2 - Water supply and heating system with flexible tank and heating carpet - Google Patents

Water supply and heating system with flexible tank and heating carpet Download PDF

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US10948217B2
US10948217B2 US16/027,013 US201816027013A US10948217B2 US 10948217 B2 US10948217 B2 US 10948217B2 US 201816027013 A US201816027013 A US 201816027013A US 10948217 B2 US10948217 B2 US 10948217B2
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water
flexible
outer layer
heating
water bag
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US20180347853A1 (en
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Alex Harel
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/06—Portable or mobile, e.g. collapsible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1606—Large containers flexible double-walled or with linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/08—Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/185—Water-storage heaters using electric energy supply
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/80—Airborne solar heat collector modules, e.g. inflatable structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S2080/01—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/02—Heaters specially designed for de-icing or protection against icing

Definitions

  • the present invention refers to a system for the supply and heating of water, which comprises a flexible water tank and a flexible heating carpet and electrical connection mechanism.
  • FIG. 1 presents schematically the system ( 1 ), the flexible water tank ( 2 ), the water inlet hose ( 51 ), the water outlet hose ( 52 ), the electrical connection mechanism ( 32 ), the controller ( 33 ) and a power supply ( 4 ).
  • FIG. 2 presents schematically the water bag ( 22 ) and its water inlet hose ( 51 ).
  • FIG. 3 presents schematically the flexible water tank ( 2 ) with the flexible heating carpet ( 3 ).
  • FIG. 4 presents schematically the flexible heating carpet ( 3 ) with the flexible electrical heating strips ( 31 ).
  • the object of the present invention is to provide a water supply system ( 1 ) that comprises a flexible water tank ( 2 ), a flexible heating carpet ( 3 ) and an electrical connection mechanism ( 32 ).
  • the flexible water tank ( 2 ) comprises a flexible outer layer ( 21 ) and separable inflatable and collapsible water bag ( 22 ).
  • the flexible water tank ( 2 ) may also include an insulating layer ( 23 ).
  • the separable inflatable and collapsible water bag ( 22 ) is equipped with a water inlet hose ( 51 ) and a water outlet hose ( 52 ).
  • the water bag ( 22 ) is designed to receive water through the water inlet hose ( 51 ) and to supply water through the water outlet hose ( 52 ).
  • the water bag ( 22 ) is positioned inside the flexible outer layer ( 21 ) and is designed to remain collapsed when empty of water.
  • the water inlet hose ( 51 ) and the water outlet hose ( 52 ) are accessible through an opening ( 55 ) in the flexible outer layer ( 21 ).
  • the water bag ( 22 ) can be replaced by a new one in maintenance or before storage after use.
  • the water bag ( 22 ) is designed to inflate when filled with water while positioned in the flexible outer layer ( 21 ) and to deflate when the water is drained from the water bag ( 22 ).
  • the flexible outer layer ( 21 ) is designed to inflate when the water bag is filled with water while positioned inside the flexible outer layer ( 21 ) and to deflate when the water is drained from the water bag ( 22 ).
  • the flexible heating carpet ( 3 ) includes flexible flat electrical heating strips ( 31 ) that are connected to the electrical connection mechanism ( 32 ).
  • the flexible heating carpet ( 3 ) is positioned in the dry space ( 7 ) between the flexible outer layer ( 21 ) and the water bag ( 22 ).
  • the flexible heating carpet that includes the flexible flat electrical heating strips ( 31 ) is positioned in a dry space and they have no contact with water.
  • the electrical connection mechanism ( 32 ) is designed to connect the flexible flat electrical heating strips ( 31 ) to a power source supply ( 4 ).
  • the flexible heating carpet due to its flexibility and the flexibility of the flexible flat electrical heating strips can receive the rounded shape of the flexible water tank ( 2 ) when filled by water or the flat shape when empty.
  • the system ( 1 ) is connected to a power source ( 4 ) that can be for example photo-voltaic panel.
  • the system can be conveniently transported and set up at the relevant site and easily connected to existing water system.
  • the system ( 1 ) may include a controller ( 33 ) that may include thermometer.
  • the outer layer ( 21 ) is preferably made of materials such as PVC, PE or other materials that are flexible enough to enable the tank ( 2 ) to inflate when it is filled with water and deflate when the water is drained out from it.
  • the material must also be strong enough so that the outer layer does not tear under the weight of the water or upon contact or impact with other objects or with the ground when the system ( 1 ) is in use or is being transported to its required location.
  • the separable inflatable and collapsible water bag ( 22 ) may be made of a food-safe material, i.e. a material approved by the relevant authorities for storing portable drinking water.
  • the insulating layer ( 23 ) can be made of any known and existing insulating material.
  • the flexible heating carpet ( 3 ) is designed to heat the water in the water bag ( 22 ) using flexible electrical heating strips ( 31 ) that may be attached to the water bag ( 22 ) in such a way that leads to high energy efficiency.
  • the electrical strips ( 31 ) are designed to be connected to the power source ( 4 ).
  • the power source can be the conventional electricity grid or a generator, or a photo-voltaic panel that utilizes solar energy to produce electricity that is then used to heat the water in the tank.
  • the electrical connection mechanism ( 32 ) may include an electronic card and an electrical circuit designed to connect the electrical strips ( 31 ) to the power source and control the relevant power source so that it may be turned on at any given moment according to need.
  • the tank ( 2 ), and in fact the water bag ( 22 ), has a water inlet hose ( 51 ) to which a water inlet pipe is connected.
  • the water outlet hose ( 52 ) through which the water flows to a pipe to its relevant destination.
  • the system ( 1 ) may be used for supplying hot drinking water, possibly in outdoor events, hot water for showers and the like.
  • the system ( 1 ) can be incorporated to an existing solar heater or to existing solar collectors that are already installed in the site.
  • the system ( 1 ) with its water flexible tank ( 2 ) can serve as an alternative for existing solar heaters.
  • the system ( 1 ) and the water tank ( 2 ) are lightweight and small in terms of volume and can be transported and set up in the relevant location easily and safely, as opposed to rigid tanks; (b) scale does not likely to accumulate on the flexible tank ( 2 ) since the electrical heating strips do not come in direct contact with water and since there is no contact between the water and a metallic heating system the water are kept in drinking quality and may be used during shortage and crisis situation. If, nevertheless, scale accumulate on the water bag ( 22 ) it is possible to replace it easily and inexpensively.
  • the system ( 1 ) may be used for preventing the freezing of water in main water pipes.
  • systems are required in order to prevent water from freezing when ambient temperatures drop beneath the freezing point.
  • the system offers an effective solution to this problem by connecting the system to the water and power systems, activating the heating carpet ( 3 ), and circulating warm water through the piping to prevent freezing.
  • the system ( 1 ) can be transported, set up, and connected in an easy and fast manner at the intended site.
  • the system ( 1 ) is portable and can be transported from place to place according to need, or can be set up in one location for extended use. No similar water supply and heating system currently exists that offer the advantages and solutions mentioned above.
  • the system ( 1 ) constitutes a good, efficient, and inexpensive response to the needs described in the application.
  • FIG. 1 presents schematically the system ( 1 ), the flexible water tank ( 2 ), the water inlet hose ( 51 ), the water outlet hose ( 52 ), the electrical connection mechanism ( 32 ), the controller ( 33 ) and a power supply ( 4 ).
  • FIG. 2 presents schematically the water bag ( 22 ) and its water inlet hose ( 51 ).
  • FIG. 3 presents schematically the flexible water tank ( 2 ) with the flexible heating carpet ( 3 ).
  • FIG. 4 presents schematically the flexible heating carpet ( 3 ) with the flexible electrical heating strips ( 31 ).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)

Abstract

A water supply and heating system that includes a flexible water tank, a flexible heating carpet and an electrical connection mechanism. The water tank includes a flexible outer layer and separable inflatable and collapsible water bag. The water bag is equipped with a water inlet and outlet hoses for receiving supplying water. The water bag is positioned inside the outer layer and is designed to remain collapsed when and to inflate when filled with water. The outer layer too is designed to inflate when the water bag is filled with the water and to deflate when the water is drained from the water bag. A dry space is defined between the outer layer and the water bag in which the heating carpet is positioned. The heating carpet includes flexible flat electrical heating strips that are connected to the electrical connection mechanism.

Description

RELATED APPLICATIONS
This application is a continuation in part of U.S. patent application Ser. No. 14/758,478 filed on Jun. 29, 2015, which is a National Phase of PCT Patent Application No. PCT/IL2014/000003 having International filing date of 7 Jan. 2014, which claims the benefit of priority from IL Patent Application No. 224132 filed on 8 Jan. 2013. The contents of the above applications are all incorporated by reference as if fully set forth herein in their entirety.
TECHNICAL FIELD
The present invention refers to a system for the supply and heating of water, which comprises a flexible water tank and a flexible heating carpet and electrical connection mechanism.
BACKGROUND ART
In many instances it is customary to use systems for the supply and heating of water for residential, industrial, and agricultural use. Currently existing systems are cumbersome and are based primarily on rigid, heavy water tanks that are inconvenient to transport and set up in the desire location. In many cases, users need a water supply and heating system that is portable and lightweight, and easy to connect and operate. The present invention describes a water supply and heating system with unique and innovative features that provides a response to these problems.
DESCRIPTION OF THE DRAWINGS
The intention of the drawings attached to the application is not to limit the scope of the invention and its application.
The drawings are intended only to illustrate the invention and they constitute only one of its many possible implementations.
FIG. 1 presents schematically the system (1), the flexible water tank (2), the water inlet hose (51), the water outlet hose (52), the electrical connection mechanism (32), the controller (33) and a power supply (4).
FIG. 2 presents schematically the water bag (22) and its water inlet hose (51).
FIG. 3 presents schematically the flexible water tank (2) with the flexible heating carpet (3).
FIG. 4 presents schematically the flexible heating carpet (3) with the flexible electrical heating strips (31).
 THE INVENTION
The object of the present invention is to provide a water supply system (1) that comprises a flexible water tank (2), a flexible heating carpet (3) and an electrical connection mechanism (32).
The flexible water tank (2) comprises a flexible outer layer (21) and separable inflatable and collapsible water bag (22). The flexible water tank (2) may also include an insulating layer (23).
The separable inflatable and collapsible water bag (22) is equipped with a water inlet hose (51) and a water outlet hose (52). The water bag (22) is designed to receive water through the water inlet hose (51) and to supply water through the water outlet hose (52).
The water bag (22) is positioned inside the flexible outer layer (21) and is designed to remain collapsed when empty of water. The water inlet hose (51) and the water outlet hose (52) are accessible through an opening (55) in the flexible outer layer (21). The water bag (22) can be replaced by a new one in maintenance or before storage after use.
The water bag (22) is designed to inflate when filled with water while positioned in the flexible outer layer (21) and to deflate when the water is drained from the water bag (22). In the same way, the flexible outer layer (21) is designed to inflate when the water bag is filled with water while positioned inside the flexible outer layer (21) and to deflate when the water is drained from the water bag (22).
A dry space (7), like a gap even very small, is defined between the flexible outer layer (21) and the water bag (22). The flexible heating carpet (3) includes flexible flat electrical heating strips (31) that are connected to the electrical connection mechanism (32). The flexible heating carpet (3) is positioned in the dry space (7) between the flexible outer layer (21) and the water bag (22). By that, the flexible heating carpet that includes the flexible flat electrical heating strips (31) is positioned in a dry space and they have no contact with water. The electrical connection mechanism (32) is designed to connect the flexible flat electrical heating strips (31) to a power source supply (4).
The flexible heating carpet, due to its flexibility and the flexibility of the flexible flat electrical heating strips can receive the rounded shape of the flexible water tank (2) when filled by water or the flat shape when empty.
The system (1) is connected to a power source (4) that can be for example photo-voltaic panel. The system can be conveniently transported and set up at the relevant site and easily connected to existing water system. The system (1) may include a controller (33) that may include thermometer.
The outer layer (21) is preferably made of materials such as PVC, PE or other materials that are flexible enough to enable the tank (2) to inflate when it is filled with water and deflate when the water is drained out from it. The material must also be strong enough so that the outer layer does not tear under the weight of the water or upon contact or impact with other objects or with the ground when the system (1) is in use or is being transported to its required location. The separable inflatable and collapsible water bag (22) may be made of a food-safe material, i.e. a material approved by the relevant authorities for storing portable drinking water. The insulating layer (23) can be made of any known and existing insulating material.
The flexible heating carpet (3) is designed to heat the water in the water bag (22) using flexible electrical heating strips (31) that may be attached to the water bag (22) in such a way that leads to high energy efficiency.
The electrical strips (31) are designed to be connected to the power source (4). The power source can be the conventional electricity grid or a generator, or a photo-voltaic panel that utilizes solar energy to produce electricity that is then used to heat the water in the tank. The electrical connection mechanism (32) may include an electronic card and an electrical circuit designed to connect the electrical strips (31) to the power source and control the relevant power source so that it may be turned on at any given moment according to need.
Connecting the system (1) to relevant water and power sources: The tank (2), and in fact the water bag (22), has a water inlet hose (51) to which a water inlet pipe is connected. The water outlet hose (52) through which the water flows to a pipe to its relevant destination.
The system (1) may be used for supplying hot drinking water, possibly in outdoor events, hot water for showers and the like. The system (1) can be incorporated to an existing solar heater or to existing solar collectors that are already installed in the site. The system (1) with its water flexible tank (2) can serve as an alternative for existing solar heaters. This offers many advantages: (a) The system (1) and the water tank (2) are lightweight and small in terms of volume and can be transported and set up in the relevant location easily and safely, as opposed to rigid tanks; (b) scale does not likely to accumulate on the flexible tank (2) since the electrical heating strips do not come in direct contact with water and since there is no contact between the water and a metallic heating system the water are kept in drinking quality and may be used during shortage and crisis situation. If, nevertheless, scale accumulate on the water bag (22) it is possible to replace it easily and inexpensively.
The system (1) may be used for preventing the freezing of water in main water pipes. In cold places where external water tanks are used for the supply of water, systems are required in order to prevent water from freezing when ambient temperatures drop beneath the freezing point. In addition, in such areas as described above, even when water is supplied via standard water piping, there are times when it is so cold that water freezes in the pipes. The system offers an effective solution to this problem by connecting the system to the water and power systems, activating the heating carpet (3), and circulating warm water through the piping to prevent freezing.
The system (1) can be transported, set up, and connected in an easy and fast manner at the intended site. The system (1) is portable and can be transported from place to place according to need, or can be set up in one location for extended use. No similar water supply and heating system currently exists that offer the advantages and solutions mentioned above. The system (1) constitutes a good, efficient, and inexpensive response to the needs described in the application.
FIG. 1 presents schematically the system (1), the flexible water tank (2), the water inlet hose (51), the water outlet hose (52), the electrical connection mechanism (32), the controller (33) and a power supply (4). FIG. 2 presents schematically the water bag (22) and its water inlet hose (51). FIG. 3 presents schematically the flexible water tank (2) with the flexible heating carpet (3). FIG. 4 presents schematically the flexible heating carpet (3) with the flexible electrical heating strips (31).

Claims (1)

What is claimed is:
1. A water supply and heating system, comprising: a flexible water tank, a flexible heating carpet and an electrical connection mechanism;
wherein said flexible water tank comprises a flexible outer layer and separable inflatable and collapsible water bag;
wherein said separable inflatable and collapsible water bag is equipped with a water inlet hose and a water outlet hose; wherein said separable inflatable and collapsible water bag is designed to receive water through the water inlet hose and to supply water through the water outlet hose;
wherein said separable inflatable and collapsible water bag is positioned inside the flexible outer layer and is designed to remain collapsed when empty;
wherein said water inlet hose and said water outlet hose are accessible through an opening in said flexible outer layer; wherein said separable inflatable and collapsible water bag can be replaced by a new one;
wherein said separable inflatable and collapsible water bag is designed to inflate when filled with water while positioned in said flexible outer layer and to deflate when the water is drained from said separable inflatable and collapsible water bag; wherein said flexible outer layer is designed to inflate when said separable inflatable and collapsible water bag is filled with the water while positioned in said flexible outer layer and to deflate when the water is drained from said separable inflatable and collapsible water bag;
wherein a dry space is defined between said flexible outer layer and said separable inflatable and collapsible water bag; wherein said flexible heating carpet includes flexible flat electrical heating strips that are connected to the electrical connection mechanism; wherein said flexible heating carpet is positioned in the dry space between the flexible outer layer and the separable inflatable and collapsible water bag; wherein said electrical connection mechanism is designed to connect the flexible flat electrical heating strips to a power source.
US16/027,013 2013-01-08 2018-07-03 Water supply and heating system with flexible tank and heating carpet Active 2034-11-06 US10948217B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/027,013 US10948217B2 (en) 2013-01-08 2018-07-03 Water supply and heating system with flexible tank and heating carpet

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
IL224132 2013-01-08
IL224132A IL224132A (en) 2013-01-08 2013-01-08 Supplying and heating water system comprising flexible tank and heating system
PCT/IL2014/000003 WO2014108891A1 (en) 2013-01-08 2014-01-07 Water supply and heating system comprising flexible tank and heating
US201514758478A 2015-06-29 2015-06-29
US16/027,013 US10948217B2 (en) 2013-01-08 2018-07-03 Water supply and heating system with flexible tank and heating carpet

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/IL2014/000003 Continuation-In-Part WO2014108891A1 (en) 2013-01-08 2014-01-07 Water supply and heating system comprising flexible tank and heating
US14/758,478 Continuation-In-Part US20150345825A1 (en) 2013-01-08 2014-01-07 Water Supply and Heating System Comprising Flexible Tank and Heating Unit

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US20180347853A1 US20180347853A1 (en) 2018-12-06
US10948217B2 true US10948217B2 (en) 2021-03-16

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522523A (en) * 1994-02-14 1996-06-04 Southcorp Water Heaters Usa, Inc. Water heater having flexible liner and method for making the same
US20030210902A1 (en) * 2002-05-10 2003-11-13 Giamati Michael J. Heater for aircraft potable water tank

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522523A (en) * 1994-02-14 1996-06-04 Southcorp Water Heaters Usa, Inc. Water heater having flexible liner and method for making the same
US20030210902A1 (en) * 2002-05-10 2003-11-13 Giamati Michael J. Heater for aircraft potable water tank

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